15 JunA Scientific Geranium Question

Pelargonium x fragrans 'Nutmeg' with red leaves (March 18, 2006)
Pelargonium x fragrans ‘Nutmeg’ with red leaves (March 18, 2006)

Ronnie from the U.K. asks: Why do some geranium leaves turn an
“autumnal” red now, June but others do not?

My answer: The different varieties of Pelargoniums often have very unique characteristics. The red leaves could be a response to some kind of stress like sudden change in the weather (hot days and cold nights). If the plant is otherwise healthy, there is nothing in particular to be done about it, but enjoy the show.

I am wondering if any one else has any thoughts on the phenomenon Ronnie describes.

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